JP4092640B2 - Water curtain fire prevention equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to fire prevention equipment in buildings, and more particularly to water curtain fire prevention equipment using a water curtain formed by a drainer head.
[0002]
[Prior art]
In general, fire prevention areas for preventing fire spread in buildings are formed by fire shutters, but recently, water curtain fire prevention equipment has been proposed in which a fire prevention area is formed by a water curtain using a drainage facility. In addition to being able to expect an excellent flame-shielding effect, it is considered to be extremely effective because it does not cause obstructions due to obstructions and does not interfere with evacuation and fire fighting activities compared to the case with fire shutters, It seems to spread widely in the future.
[0003]
As an example, for example, Patent Document 1 discloses a specific fire prevention by arranging a drain head on a ceiling surface at a position where a fire prevention section is to be formed, and forming a double water curtain by watering from the drain head. A drainage facility that is said to have performance as a facility has been proposed.
[0004]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-143333
[Problems to be solved by the invention]
The drainage equipment as the water curtain fire prevention equipment shown in Patent Document 1 forms a double water curtain, but is formed by discharging water from two drainer heads in which the double water curtain is arranged in close proximity. In other words, the water flow from a single drainer head is formed by bisecting, and the double water curtain is merely formed at a slight interval. Therefore, although the required water discharge amount is doubled to form a double water curtain, only the effect that the thickness of the water curtain is slightly increased can be obtained, and the fire performance is not greatly improved. You might also say that.
[0006]
In any case, in order to make this kind of water curtain fire prevention equipment truly effective, it is necessary to increase the safety and reliability of the fire prevention equipment more effectively. The actual situation is the development of new water curtain fire prevention equipment.
[0007]
[Means for Solving the Problems]
In view of the above circumstances, the present invention is a water curtain fire prevention equipment by a water curtain formed by discharging water from a drain head in a curtain shape, and the drain heads are arranged in two rows at intervals. In the event of a fire, a double water curtain is formed by the two rows of drain heads to secure a buffer space between the double water curtains, and the drain head is placed over the entire floor of the buffer space. By providing a pit-shaped water collecting section for collecting and storing water discharged from the double water curtains so as to connect the double water curtains, the double water curtains and the drainer head are discharged to collect the water. It is possible to form the buffer space surrounded by three sides by stored water stored in the water part .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an embodiment in which the water curtain fire prevention equipment of the present invention is provided on an arbitrary floor of a building. This is because two fire-preventing walls 1 are provided at intervals on the ceiling, and a drainer head 2 is attached to the lower part of each fire-preventing wall 1, and water is discharged from these drainer heads 2 in the form of curtains in the event of a fire. The double water curtains 3A and 3B are formed, and therefore, in the event of a fire, the front and back are substantially covered by the water curtains 3A and 3B between the double water curtains 3A and 3B. A buffer space 4 in a closed state partitioned from the periphery is formed.
[0009]
The entire floor surface of the buffer space 4 is formed slightly lower than the surrounding floor surface, and a shallow pit-shaped water collecting portion 5 connects the double water curtains 3A and 3B there. It provided so as, water curtain 3A, a portion of the water discharge water to form a 3B is adapted to be retained in the water collection unit 5.
[0010]
Therefore, in the water curtain fire prevention equipment of the present embodiment, the buffer space 4 formed by the double water curtains 3A and 3B at the time of a fire is only partitioned by those water curtains 3A and 3B. In addition, the floor surface is also covered with the stored water 6 stored in the water collecting section 5, so that the buffer space 4 is secured as a safe space with respect to the fire generating space 7, and is further viewed from the fire generating space 7. A sufficiently safe safety space 8 is secured beyond the lever buffer space 4.
[0011]
That is, in the water curtain fire prevention equipment of this embodiment, as indicated by the arrows in the figure, first, the flame shielding by the first water curtain 3A formed between the fire occurrence space 7 and the buffer space 4 is performed. The amount of heat transmitted or radiated from the fire occurrence space 7 to the buffer space 4 can be greatly reduced by the effect and the heat shielding effect. And since the floor surface is covered with the stored water 6 in the buffer space 4, the endothermic effect by the stored water 6 is exhibited, and the temperature in the buffer space 4 is such that the stored water 6 is. It will be kept at a low temperature compared to the case where there is no. Further, since the second-stage water curtain 3B is formed between the buffer space 4 and the safety space 8, the amount of heat transmitted or radiated to the safety space 8 through the water curtain 3B is further reduced here. It will be.
[0012]
Thus, in the water curtain fire prevention equipment of the present embodiment, the double water curtains 3A and 3B and the double water curtains 3A and 3B are provided on the entire floor surface of the buffer space 4 so as to be connected. Since the buffer space 4 surrounded on three sides by the stored water 6 stored in the pit-shaped water collecting portion 5 is formed between the fire occurrence space 7 and the safety space 8, the buffer space 4 The effect of preventing the spread of fire is surely obtained and excellent fireproof performance can be exhibited, and the safety and reliability of this kind of water curtain fireproof equipment can be sufficiently secured.
[0013]
Moreover, since the water collection part 5 is provided in the floor surface of the buffer space 4, and the stored water 6 is stored there, not only the improvement of the fire prevention performance by the stored water 6 is obtained as mentioned above but the water collection part 5 If the overflowed water is collected, there is an advantage that water discharged from the drain head 2 can be prevented from being randomly diffused to the surroundings and water damage can be reduced.
[0014]
Further, the water curtain fire prevention equipment of the present embodiment has the drain heads 2 arranged in two rows so as to provide the buffer space 4, and the floor of the buffer space 4 so as to connect the double water curtains 3A and 3B. Except for providing a shallow pit-shaped water collecting section 5 on the entire surface , it can be basically configured in the same manner as this type of water curtain fire prevention equipment and drainage equipment, so it is more complicated than that. It doesn't require mechanism or control, nor does it add cost.
[0015]
Since the water collecting portion 5 is provided on the floor surface of the buffer space 4, a step is generated between the floor space and the surrounding floor surface. Therefore, the buffer space 4 is normally used as a buffer for a passage, for example. It is preferable to use a plan that does not hinder even if there is a step, such as Alternatively, it is also possible to adjust the floor finishing level to the surroundings while allowing water to be stored in the water collecting unit 5 by attaching a floor material such as a lattice or a cocoon to the water collecting unit 5 if necessary.
[0016]
Of course, the width of the buffer space 4 (that is, the interval between the water curtains 3A and 3B), the depth of the water collecting section 5, the amount of the stored water 6 to be stored in the water collecting section 5, and the like form the buffer space 4. What is necessary is just to set suitably in consideration of the original use of a power position, a plane plan, the situation of the assumed fire, etc.
[0017]
Further, in the example shown in the figure, the fire drooping wall 1 is provided on the ceiling and the drainage head 2 is provided on the lower part thereof. However, the present invention is not limited to this, and the drainage head without the fire dripping wall 1 being provided. Modifications such as attaching 2 directly to the ceiling surface, or providing a groove-shaped recess on the ceiling surface and attaching the drainer head 2 inside thereof are optional, and other appropriate design changes as necessary Needless to say, this is possible.
[0018]
【The invention's effect】
In the present invention, drainer heads are arranged in two rows at intervals, and in the event of a fire, a double water curtain is formed by these two rows of drainer heads, and a buffer is provided between the double water curtains. In addition to securing the space, a pit-shaped water collecting section that collects and stores the discharged water from the drainage head so as to connect the double water curtains to the entire floor surface of the buffer space is provided. The buffer space formed by three sides surrounded by the double water curtain and the stored water stored in the water collection section ensures the effect of preventing the spread of fire and exhibits excellent fire prevention performance. The safety and reliability of the seed water curtain fire prevention equipment can be sufficiently secured.
[Brief description of the drawings]
FIG. 1 is a diagram showing an outline of a water curtain fire prevention equipment according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Fire dripping wall 2 Drencher head 3A, 3B Water curtain 4 Buffer space 5 Catchment part 6 Reservoir 7 Fire occurrence space 8 Safety space

Claims (1)

A water curtain fire protection system with a water curtain formed by discharging water from the drain head into a curtain shape, and the drain heads are arranged in two rows at intervals, and in the event of a fire, these two rows A double water curtain is formed by the drain head of the water, and a buffer space is secured between the double water curtains, and water discharged from the drain head is collected over the entire floor of the buffer space. By providing a pit-shaped water collecting section to store between the double water curtains, the double water curtain and the stored water discharged from the drain head and stored in the water collecting section A water curtain fire prevention facility characterized in that the buffer space surrounded by three sides can be formed .

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